Yahoo! Finance has an important chart on where the candidates stand on Social Security reform, story link here. Donald Trump has yet to take a stand.
Kasich, Bush and Rubio want to means test beneficiaries with higher income. It’s not clear if that could include accumulated net worth or liquid worth (that is, penalizing rent-seeking behavior – not real likely). Curiously, neither Clinton nor Sanders mentions means testing.
Cruz wants private accounts for Social Security, increase in retirement age and a lowering of COLA. Accounting for switching to a private option would be complicated, but I have supported this idea, to keep benefits out of play as a potential bargaining chip for politicians.
Only Hillary Clinton wants to improve benefits for caregivers (not even Sanders, and that is a surprise.)